434"
just fired up my new motor last night, first time out will be Boise Idaho's oldies race June 5-6 this motor is a Dart block with a compustar 4" crank 6" h beam rods & JE pistons 58 cc AFR heads suspose to be 14.7 to 1 on gas, maybe i'll see those 1.30's @ 60'. bowler